/**
  ******************************************************************************
  * @file      startup_stm32h503xx.s
  * @author    MCD Application Team
  * @brief     STM32H503xx devices vector table GCC toolchain.
  *            This module performs:
  *                - Set the initial SP
  *                - Set the initial PC == Reset_Handler,
  *                - Set the vector table entries with the exceptions ISR address,
  *                - Configure the clock system
  *                - Branches to main in the C library (which eventually
  *                  calls main()).
  *            After Reset the Cortex-M33 processor is in Thread mode,
  *            priority is Privileged, and the Stack is set to Main.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2023 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */

  .syntax unified
    .cpu cortex-m33
    .fpu softvfp
    .thumb

.global g_pfnVectors
.global Default_Handler

/* start address for the initialization values of the .data section.
defined in linker script */
.word   _sidata
/* start address for the .data section. defined in linker script */
.word   _sdata
/* end address for the .data section. defined in linker script */
.word   _edata
/* start address for the .bss section. defined in linker script */
.word   _sbss
/* end address for the .bss section. defined in linker script */
.word   _ebss

.equ  BootRAM,        0xF1E0F85F
/**
  * @brief  This is the code that gets called when the processor first
  *          starts execution following a reset event. Only the absolutely
  *          necessary set is performed, after which the application
  *          supplied main() routine is called.
  * @param  None
  * @retval : None
  */

    .section    .text.Reset_Handler
    .weak   Reset_Handler
    .type   Reset_Handler, %function
Reset_Handler:
  ldr   sp, =_estack    /* set stack pointer */

/* Copy the data segment initializers from flash to SRAM */
  movs  r1, #0
  b LoopCopyDataInit

CopyDataInit:
    ldr r3, =_sidata
    ldr r3, [r3, r1]
    str r3, [r0, r1]
    adds    r1, r1, #4

LoopCopyDataInit:
    ldr r0, =_sdata
    ldr r3, =_edata
    adds    r2, r0, r1
    cmp r2, r3
    bcc CopyDataInit
    ldr r2, =_sbss
    b   LoopFillZerobss
/* Zero fill the bss segment. */
FillZerobss:
    movs    r3, #0
    str r3, [r2], #4

LoopFillZerobss:
    ldr r3, = _ebss
    cmp r2, r3
    bcc FillZerobss

/* Call the clock system initialization function.*/
    bl  SystemInit
/* Call static constructors */
    bl __libc_init_array
/* Call the application's entry point.*/
    bl  main

LoopForever:
    b LoopForever

.size   Reset_Handler, .-Reset_Handler

/**
 * @brief  This is the code that gets called when the processor receives an
 *         unexpected interrupt.  This simply enters an infinite loop, preserving
 *         the system state for examination by a debugger.
 *
 * @param  None
 * @retval : None
*/
    .section    .text.Default_Handler,"ax",%progbits
Default_Handler:
Infinite_Loop:
    b   Infinite_Loop
    .size   Default_Handler, .-Default_Handler
/******************************************************************************
*
* The minimal vector table for a Cortex-M33.  Note that the proper constructs
* must be placed on this to ensure that it ends up at physical address
* 0x0000.0000.
*
******************************************************************************/
    .section    .isr_vector,"a",%progbits
    .type   g_pfnVectors, %object
    .size   g_pfnVectors, .-g_pfnVectors


g_pfnVectors:
    .word   _estack
    .word   Reset_Handler
    .word   NMI_Handler
    .word   HardFault_Handler
    .word   MemManage_Handler
    .word   BusFault_Handler
    .word   UsageFault_Handler
    .word   0
    .word   0
    .word   0
    .word   0
    .word   SVC_Handler
    .word   DebugMon_Handler
    .word   0
    .word   PendSV_Handler
    .word   SysTick_Handler
    .word   WWDG_IRQHandler
    .word   PVD_AVD_IRQHandler
    .word   RTC_IRQHandler
    .word   0
    .word   TAMP_IRQHandler
    .word   RAMCFG_IRQHandler
    .word   FLASH_IRQHandler
    .word   0
    .word   GTZC_IRQHandler
    .word   RCC_IRQHandler
    .word   0
    .word   EXTI0_IRQHandler
    .word   EXTI1_IRQHandler
    .word   EXTI2_IRQHandler
    .word   EXTI3_IRQHandler
    .word   EXTI4_IRQHandler
    .word   EXTI5_IRQHandler
    .word   EXTI6_IRQHandler
    .word   EXTI7_IRQHandler
    .word   EXTI8_IRQHandler
    .word   EXTI9_IRQHandler
    .word   EXTI10_IRQHandler
    .word   EXTI11_IRQHandler
    .word   EXTI12_IRQHandler
    .word   EXTI13_IRQHandler
    .word   EXTI14_IRQHandler
    .word   EXTI15_IRQHandler
    .word   GPDMA1_Channel0_IRQHandler
    .word   GPDMA1_Channel1_IRQHandler
    .word   GPDMA1_Channel2_IRQHandler
    .word   GPDMA1_Channel3_IRQHandler
    .word   GPDMA1_Channel4_IRQHandler
    .word   GPDMA1_Channel5_IRQHandler
    .word   GPDMA1_Channel6_IRQHandler
    .word   GPDMA1_Channel7_IRQHandler
    .word   IWDG_IRQHandler
    .word   0
    .word   ADC1_IRQHandler
    .word   DAC1_IRQHandler
    .word   FDCAN1_IT0_IRQHandler
    .word   FDCAN1_IT1_IRQHandler
    .word   TIM1_BRK_IRQHandler
    .word   TIM1_UP_IRQHandler
    .word   TIM1_TRG_COM_IRQHandler
    .word   TIM1_CC_IRQHandler
    .word   TIM2_IRQHandler
    .word   TIM3_IRQHandler
    .word   0
    .word   0
    .word   TIM6_IRQHandler
    .word   TIM7_IRQHandler
    .word   I2C1_EV_IRQHandler
    .word   I2C1_ER_IRQHandler
    .word   I2C2_EV_IRQHandler
    .word   I2C2_ER_IRQHandler
    .word   SPI1_IRQHandler
    .word   SPI2_IRQHandler
    .word   SPI3_IRQHandler
    .word   USART1_IRQHandler
    .word   USART2_IRQHandler
    .word   USART3_IRQHandler
    .word   0
    .word   0
    .word   LPUART1_IRQHandler
    .word   LPTIM1_IRQHandler
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   LPTIM2_IRQHandler
    .word   0
    .word   0
    .word   0
    .word   USB_DRD_FS_IRQHandler
    .word   CRS_IRQHandler
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   GPDMA2_Channel0_IRQHandler
    .word   GPDMA2_Channel1_IRQHandler
    .word   GPDMA2_Channel2_IRQHandler
    .word   GPDMA2_Channel3_IRQHandler
    .word   GPDMA2_Channel4_IRQHandler
    .word   GPDMA2_Channel5_IRQHandler
    .word   GPDMA2_Channel6_IRQHandler
    .word   GPDMA2_Channel7_IRQHandler
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   FPU_IRQHandler
    .word   ICACHE_IRQHandler
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   DTS_IRQHandler
    .word   RNG_IRQHandler
    .word   0
    .word   0
    .word   HASH_IRQHandler
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   I3C1_EV_IRQHandler
    .word   I3C1_ER_IRQHandler
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   I3C2_EV_IRQHandler
    .word   I3C2_ER_IRQHandler
    .word   COMP1_IRQHandler

/*******************************************************************************
*
* Provide weak aliases for each Exception handler to the Default_Handler.
* As they are weak aliases, any function with the same name will override
* this definition.
*
*******************************************************************************/

    .weak   NMI_Handler
    .thumb_set NMI_Handler,Default_Handler

    .weak   HardFault_Handler
    .thumb_set HardFault_Handler,Default_Handler

    .weak   MemManage_Handler
    .thumb_set MemManage_Handler,Default_Handler

    .weak   BusFault_Handler
    .thumb_set BusFault_Handler,Default_Handler

    .weak   UsageFault_Handler
    .thumb_set UsageFault_Handler,Default_Handler

    .weak   SVC_Handler
    .thumb_set SVC_Handler,Default_Handler

    .weak   DebugMon_Handler
    .thumb_set DebugMon_Handler,Default_Handler

    .weak   PendSV_Handler
    .thumb_set PendSV_Handler,Default_Handler

    .weak   SysTick_Handler
    .thumb_set SysTick_Handler,Default_Handler

    .weak   WWDG_IRQHandler
    .thumb_set WWDG_IRQHandler,Default_Handler

    .weak   PVD_AVD_IRQHandler
    .thumb_set PVD_AVD_IRQHandler,Default_Handler

    .weak   RTC_IRQHandler
    .thumb_set RTC_IRQHandler,Default_Handler

    .weak   TAMP_IRQHandler
    .thumb_set TAMP_IRQHandler,Default_Handler

    .weak   RAMCFG_IRQHandler
    .thumb_set RAMCFG_IRQHandler,Default_Handler

    .weak   FLASH_IRQHandler
    .thumb_set FLASH_IRQHandler,Default_Handler

    .weak   GTZC_IRQHandler
    .thumb_set GTZC_IRQHandler,Default_Handler

    .weak   RCC_IRQHandler
    .thumb_set RCC_IRQHandler,Default_Handler

    .weak   EXTI0_IRQHandler
    .thumb_set EXTI0_IRQHandler,Default_Handler

    .weak   EXTI1_IRQHandler
    .thumb_set EXTI1_IRQHandler,Default_Handler

    .weak   EXTI2_IRQHandler
    .thumb_set EXTI2_IRQHandler,Default_Handler

    .weak   EXTI3_IRQHandler
    .thumb_set EXTI3_IRQHandler,Default_Handler

    .weak   EXTI4_IRQHandler
    .thumb_set EXTI4_IRQHandler,Default_Handler

    .weak   EXTI5_IRQHandler
    .thumb_set EXTI5_IRQHandler,Default_Handler

    .weak   EXTI6_IRQHandler
    .thumb_set EXTI6_IRQHandler,Default_Handler

    .weak   EXTI7_IRQHandler
    .thumb_set EXTI7_IRQHandler,Default_Handler

    .weak   EXTI8_IRQHandler
    .thumb_set EXTI8_IRQHandler,Default_Handler

    .weak   EXTI9_IRQHandler
    .thumb_set EXTI9_IRQHandler,Default_Handler

    .weak   EXTI10_IRQHandler
    .thumb_set EXTI10_IRQHandler,Default_Handler

    .weak   EXTI11_IRQHandler
    .thumb_set EXTI11_IRQHandler,Default_Handler

    .weak   EXTI12_IRQHandler
    .thumb_set EXTI12_IRQHandler,Default_Handler

    .weak   EXTI13_IRQHandler
    .thumb_set EXTI13_IRQHandler,Default_Handler

    .weak   EXTI14_IRQHandler
    .thumb_set EXTI14_IRQHandler,Default_Handler

    .weak   EXTI15_IRQHandler
    .thumb_set EXTI15_IRQHandler,Default_Handler

    .weak   GPDMA1_Channel0_IRQHandler
    .thumb_set GPDMA1_Channel0_IRQHandler,Default_Handler

    .weak   GPDMA1_Channel1_IRQHandler
    .thumb_set GPDMA1_Channel1_IRQHandler,Default_Handler

    .weak   GPDMA1_Channel2_IRQHandler
    .thumb_set GPDMA1_Channel2_IRQHandler,Default_Handler

    .weak   GPDMA1_Channel3_IRQHandler
    .thumb_set GPDMA1_Channel3_IRQHandler,Default_Handler

    .weak   GPDMA1_Channel4_IRQHandler
    .thumb_set GPDMA1_Channel4_IRQHandler,Default_Handler

    .weak   GPDMA1_Channel5_IRQHandler
    .thumb_set GPDMA1_Channel5_IRQHandler,Default_Handler

    .weak   GPDMA1_Channel6_IRQHandler
    .thumb_set GPDMA1_Channel6_IRQHandler,Default_Handler

    .weak   GPDMA1_Channel7_IRQHandler
    .thumb_set GPDMA1_Channel7_IRQHandler,Default_Handler

    .weak   IWDG_IRQHandler
    .thumb_set IWDG_IRQHandler,Default_Handler

    .weak   ADC1_IRQHandler
    .thumb_set ADC1_IRQHandler,Default_Handler

    .weak   DAC1_IRQHandler
    .thumb_set DAC1_IRQHandler,Default_Handler

    .weak   FDCAN1_IT0_IRQHandler
    .thumb_set FDCAN1_IT0_IRQHandler,Default_Handler

    .weak   FDCAN1_IT1_IRQHandler
    .thumb_set FDCAN1_IT1_IRQHandler,Default_Handler

    .weak   TIM1_BRK_IRQHandler
    .thumb_set TIM1_BRK_IRQHandler,Default_Handler

    .weak   TIM1_UP_IRQHandler
    .thumb_set TIM1_UP_IRQHandler,Default_Handler

    .weak   TIM1_TRG_COM_IRQHandler
    .thumb_set TIM1_TRG_COM_IRQHandler,Default_Handler

    .weak   TIM1_CC_IRQHandler
    .thumb_set TIM1_CC_IRQHandler,Default_Handler

    .weak   TIM2_IRQHandler
    .thumb_set TIM2_IRQHandler,Default_Handler

    .weak   TIM3_IRQHandler
    .thumb_set TIM3_IRQHandler,Default_Handler

    .weak   TIM6_IRQHandler
    .thumb_set TIM6_IRQHandler,Default_Handler

    .weak   TIM7_IRQHandler
    .thumb_set TIM7_IRQHandler,Default_Handler

    .weak   I2C1_EV_IRQHandler
    .thumb_set I2C1_EV_IRQHandler,Default_Handler

    .weak   I2C1_ER_IRQHandler
    .thumb_set I2C1_ER_IRQHandler,Default_Handler

    .weak   I2C2_EV_IRQHandler
    .thumb_set I2C2_EV_IRQHandler,Default_Handler

    .weak   I2C2_ER_IRQHandler
    .thumb_set I2C2_ER_IRQHandler,Default_Handler

    .weak   SPI1_IRQHandler
    .thumb_set SPI1_IRQHandler,Default_Handler

    .weak   SPI2_IRQHandler
    .thumb_set SPI2_IRQHandler,Default_Handler

    .weak   SPI3_IRQHandler
    .thumb_set SPI3_IRQHandler,Default_Handler

    .weak   USART1_IRQHandler
    .thumb_set USART1_IRQHandler,Default_Handler

    .weak   USART2_IRQHandler
    .thumb_set USART2_IRQHandler,Default_Handler

    .weak   USART3_IRQHandler
    .thumb_set USART3_IRQHandler,Default_Handler

    .weak   LPUART1_IRQHandler
    .thumb_set LPUART1_IRQHandler,Default_Handler

    .weak   LPTIM1_IRQHandler
    .thumb_set LPTIM1_IRQHandler,Default_Handler

    .weak   LPTIM2_IRQHandler
    .thumb_set LPTIM2_IRQHandler,Default_Handler

    .weak   USB_DRD_FS_IRQHandler
    .thumb_set USB_DRD_FS_IRQHandler,Default_Handler

    .weak   CRS_IRQHandler
    .thumb_set CRS_IRQHandler,Default_Handler

    .weak   GPDMA2_Channel0_IRQHandler
    .thumb_set GPDMA2_Channel0_IRQHandler,Default_Handler

    .weak   GPDMA2_Channel1_IRQHandler
    .thumb_set GPDMA2_Channel1_IRQHandler,Default_Handler

    .weak   GPDMA2_Channel2_IRQHandler
    .thumb_set GPDMA2_Channel2_IRQHandler,Default_Handler

    .weak   GPDMA2_Channel3_IRQHandler
    .thumb_set GPDMA2_Channel3_IRQHandler,Default_Handler

    .weak   GPDMA2_Channel4_IRQHandler
    .thumb_set GPDMA2_Channel4_IRQHandler,Default_Handler

    .weak   GPDMA2_Channel5_IRQHandler
    .thumb_set GPDMA2_Channel5_IRQHandler,Default_Handler

    .weak   GPDMA2_Channel6_IRQHandler
    .thumb_set GPDMA2_Channel6_IRQHandler,Default_Handler

    .weak   GPDMA2_Channel7_IRQHandler
    .thumb_set GPDMA2_Channel7_IRQHandler,Default_Handler

    .weak   FPU_IRQHandler
    .thumb_set FPU_IRQHandler,Default_Handler
    .weak   ICACHE_IRQHandler
    .thumb_set ICACHE_IRQHandler,Default_Handler

    .weak   DTS_IRQHandler
    .thumb_set DTS_IRQHandler,Default_Handler

    .weak   RNG_IRQHandler
    .thumb_set RNG_IRQHandler,Default_Handler

    .weak   HASH_IRQHandler
    .thumb_set HASH_IRQHandler,Default_Handler

    .weak   I3C1_EV_IRQHandler
    .thumb_set I3C1_EV_IRQHandler,Default_Handler

    .weak   I3C1_ER_IRQHandler
    .thumb_set I3C1_ER_IRQHandler,Default_Handler

    .weak   I3C2_EV_IRQHandler
    .thumb_set I3C2_EV_IRQHandler,Default_Handler

    .weak   I3C2_ER_IRQHandler
    .thumb_set I3C2_ER_IRQHandler,Default_Handler

    .weak   COMP1_IRQHandler
    .thumb_set COMP1_IRQHandler,Default_Handler
